Firearms, especially sports or target pistol

ABSTRACT

A firearm, particularly a sports or target pistol, comprising an angle-lever breechblock mechanism, wherein an actuating or cocking lever is laterally mounted on the pistol for actuating the angle-lever breechblock mechanism.

r w '1 *1 mte 1 ae 1 [111 3,723,1fl Rohr 1 Apr. 24, 1973 FIREARMS,ESPECIALLY SPORTS OR [56] References Cited TARGET PISTOL [75] Inventor:Edwin Ruhr, Wettingen, Switzer- UMTED STATES PATENTS land 1,725,2728/1929 Heinemann ..89/189 2,856,717 10/1958 Parke ..42/16 [73] Assignee:Vishuy Intertechnology, Inc, Malvem FOREIGN PATENTS OR APPLICATIONS805,533 12/1958 Great Britain ..42/16 [22] Filed: Sept. 16, 1970 PrimaryExaminerBenjamin A. Borchelt A 1. 72, [21 1 pp No 578 AssistantExaminerC. T. Jordan Att0rneyWerner W. Kleeman [30] Foreign ApplicationPriority Data [57] ABSTRACT Oct. 14, 1969 Switzerland ..15470/69 Afirearm, particularly a sports or target pistol, com- [52] U S Cl 42/69A 42/16 prising an angle-lever breechblock mechanism, 11/00 wherein anactuating or cocking lever is laterally mounted on the pistol foractuating the angle-lever [58] Field of Search ..42/16, 69 A, 89/175,breechblock mechanism 8 Claims, 5 Drawing Figures Patented April 24,1973 4 Sheets-Sheet l Patented April 24, 1973 3,728,810

4 Sheets-Sheet 2 Patented April 24, 1973 3,728,810

4 Sheets-Sheet 5 Patented April 24, 1973 4 Sheets-Sheet 4 FIREARMS,ESPECIALLY SPORTS OR TARGET PISTOL BACKGROUND OF THE INVENTION Thepresent invention broadly relates to firearms and, more specifically,concerns a sports or target piston, especially a pistol which in itsconception and design differs from the state-of-the-art sports pistolsin that the breechblock mechanism and trigger mechanism are much simplerand inexpensive to manufacture, while nonetheless affording maximumfiring accuracy.

The previously known types of sports or targets pistons, predominantlyequipped with drop-block breech mechanisms or angle block-breechmechanism and a tensioning or cocking lever leading through the handleor stock, or those type of constructions employing a verticalsliding-and rotary breechblock mechanism coupled with the trigger guardserving as the cocking element, generally possess a triggerordouble-hair trigger system which is independent of the striker or hammerelement and breechblock mechanism, and which system can be externallyactuated by means of a lever. Such type pistols, wherein the firingandbreechblock mechanisms function independently of the trigger system,always require two types of movement on the part of the shooter, namelyone movement for the purpose of lowering or rotating the breech-blockcylinder or the breech lock coupled with the cocking or tensioning ofthe firingand breechlock mechanism, and a second movement for settingthe trigger system. All of these constructions are very complicated,requiring extreme accuracy in manufacture which, in turn, has aconsiderable influence upon the final cost of the pistol.

SUMMARY OF THE INVENTION Therefore, there is a real need in the firearmsart for a pistol of the mentioned type which is not associated with theaforementioned drawbacks of the prior art constructions. Accordingly, aprimary objective of the present invention is to provide such a pistolwhich capably and effectively fulfills the existing need.

Another, move specific objective of the present invention is to providean improved construction of pistol which only requires a single movementfor cocking the firing mechanism, for initiating the operation of thebreechblock mechanism, and for setting the trigger system, andadditionally, simplifies the construction of the otherwise complicatedand expensive breechblockand trigger mechanisms.

Yet a further significant objective of the present invention relates toan improved construction of sporting or target pistol which is extremelysimple to use, requiring a minimum of manipulations, economical tomanufacture, provides for maximum firing accuracy, and is not readilysubject to malfunction.

Now, in order to implement these and still further objects of theinvention, which will become more readily apparent as the descriptionproceeds, the inventive pistol is manifested by the features that thebreechblock is constructed as an angle-lever breechblock mechanism whichcan be actuated by means of a cocking or tensioning lever mountedlaterally of the breechblock mechanism.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be betterunderstood and objects other than those set forth above, will becomeapparent when consideration is given to the following detaileddescription thereof. Such description makes reference to the annexeddrawings wherein:

FIG. I is a fragmentary longitudinal sectional view of the inventiveangle-lever breechblock mechanism in closed condition as provided for apistol;

FIG. 2 is a longitudinal sectional view of the anglelever breechblockmechanism of FIG. I, but this time depicted in its open position;

FIG. 3 to 5 depict respective fragmentary sectional views of thedifferent components of the inventive pistol, and specifically wherein:

FIG. 3 illustrates details of the trigger mechanism in the unsetcondition;

FIG. 4 shows the cocking operation between the breechblock mechanism andthe trigger mechanism: and

FIG. 5 illustrates the breechblock mechanism in the closed condition andthe trigger mechanism in the set condition.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Describing now thedrawings, the exemplary embodiment of inventive sports or target pistondepicted in FIG. 1 illustrates the angle-lever breechblock mechanism inits closed position, embodying the breech block or breechblock cylinder3 and the breech lock 7, supported by the support bolt or pin 8vertically mounted in the breechblock housing 2. The breechblockcylinder 3 is coupled by a connection lever 5 and the pivot bolts orpins 6 and 4 with the breechblock or breech lock 7. By means of thecocking or tensioning lever 14 threadably connected laterally of or toone side of the breech lock 7, it is possible to laterally open andclose at the left the angle-lever breechblock mechanism.

FIG. 2 illustrates this angle-lever breechblock mechanism in its openposition. Under those circumstances the cocking or tensioning lever 14is oriented Substantially perpendicular to the breechblock cylinder 3,the extend of Pivoting of this cocking lever 14 into the illustratedopen position being limited by the lateral impact of the breechblocklock 7 at the breechblock housing 2 at location 2a thereof.

Owing to the angular Movement of the breechblock lock 7, the pivot bolt6, located at a predetermined distance from the supporting bolt 8,describes a circular arc. Due to the attendant action of the connectionor connecting lever 5, mounted at the pivot bolt 6 of the breechblocklock 7 and at the pivot bolt 4 of the breechblock cylinder 3, the justmentioned breechblock cylinder 3 is retracted back within the bore 2b ofthe breechblock housing 2. During this movement the firing pin 9,subjected to the action of the firing pin spring 10, is located in itsforward fired position. By virtue of this rearward movement thebreechblock cylinder 3 frees the breech or changing chamber 38 of thebreechblock housing 2. As a result, the angle-lever breechblockmechanism is thus disposed in its uncocked open condition or state.

Now the closing movement for the breechblock mechanism is undertaken inthe reverse sense. Prion to the time that the cooperating surfaces 3aand 7a of the breechblock cylinder 3 and the breechblock lock 7interengage or contact one another, and the radii of which are matchedor accommodated to one another, the firing pin 9 is retained by thetrigger seal 11 and the firing pin spring is tensioned or loaded. Theclocking or tensioning lever 14 must now overcome this tensioning forceof the firing pin spring 10. When the tensioning or cocking lever 14 hasnested against the breechblock housing 2, then, the arresting ballmember 13 housed in the breechblock cylinder 3 and subjected to thepressure of the arresting spring 12, engages with the groove 7b of thebreechblock lock 7, the anglelever breechblock mechanism being securedin its closed position. The linear locking of the breechblock cylinder 3and the breechblock lock 7 between the barrel portion 1 and the supportpin 8 provides such a strong breech locking action that there isafforded exceptional precision.

Continuing, it is here remarked that the construction of the inventivepistol will be now best explained in conjunction with FIGS. 3 to 5inclusive, and wherein initially reference is made to the illustrationof FIG. 5. In that figure there is depicted the breechblock mechanism inits closed condition and the trigger mechanism in its set condition. Thetrigger sear 11 with its catch or lock nose 29, and pivotally mountedupon a bolt member 30 in the handle or stock 15, fixedly retains inposition the cocked or loaded firing pin member 9 owing to the action ofthe upwardly effective spring member 16 bearing against the underside ofthe trigger sear 11 as shown. The disconnector 27, subjected to theaction of the spring member 28, is mounted upon a bolt or pin 37 securedin the handle or stock portion 15. This disconnector 27 bears with itsdownwardly depending nose portion 33 upon the trigger arm nose 34. Theconfiguration of the disconnector 27 is selected such that the massthereof located beneath the point of rotation, namely below the pivotbolt 37, is so large that on the one hand the spring member 28 need notbe too strong and the moved mass can equally release the trigger seal11. On the other hand, the pressure of the nose portion or detent 34 ofthe disconnector 27 against the trigger arm nose 34 should not be toogreat, otherwise for an adjusted pressure point the trigger rod 26 nolonger possesses the requisite play or required movement capability.

The trigger arm or rod member 26 contains all of the adjustmentpossibilities for the double-hair trigger screw 24 for the double-hairtrigger, the pressure-point screw for the pressure point, the screwmember 18 for adjusting the interengagement of the nose members of thetrigger arm or rod 26 and the disconnector 27, as well as the screwmember 19 serving to secure the screw 18 and the adjustable triggertongue or trigger member 17.

FIG. 3 illustrates details of the trigger mechanism in its unsetsqueezed-off or rest position. The firing pin member 9 is no longerloaded and the breechblock cylinder 3 is closed. The trigger sear 11 isdisposed beneath the nose member or projection 35 of the firing pin 9and the disconnector 27 is likewise released or unloaded. In suchcondition, this disconnector 27 is no longer retained by the nose member34 of the trigger rod or arm 26, so that the spring 28 moves thedisconnector 27 about its point of rotation 37 until such disconnector27 bears against the trigger sear 11, as shown. In this position the camportion 32 of the disconnector 27 is in its uppermost position.

FIG. 4 illustrates the cocking or tensioning operation occuring betweenthe breechblock mechanism and the trigger mechanism. During such time asthere is undertaken the previously explained lateral movement of thecocking or tensioning lever 14 the breechblock cylinder 3 is movedrearwards. The firing pin member 9 in its previously considered forwardsqueezed-off" or non-loaded position, as shown in FIG. 4, likewise movesrearwardly together with the breechblock cylinder 3 and thus releasesthe trigger sear 11. Spring member 16 lifts this trigger sear 11 untilit contacts its non-illustrated stop, and the trigger sear assuming theposition of FIG. 4 which conveniently can be designated as the catchposition for the firing pin member 9. During the rearward movement ofthe breechblock cylinder 3 the pivot bolt member 4 also moves rearwards.Consequently, this pivot bolt 4 during such rearward travel moves ontothe cam portion or piece 32 of the disconnector 27, forces suchdownwardly to rotate about its point of rotation 37 and at the same timeovercomes the force of the spring member 28 tending to urge or load thedisconnector 27 in the clockwise direction. In this position of thedisconnector 27 it releases the trigger arm or rod 26 which, in turn,owing to the action of the spring member 25 is brought into a positionwhere the screw member 18 contacts the handle or stock portion 15.

FIG. 5 illustrates the breechblock mechanism in its closed position andthe trigger mechanism in its set condition. During closing movement ofthe cocking or tensioning lever 14, the breechblock cylinder 3 is movedforwards. The firing pin member 9 simultaneously moves forwards togetherwith the breechblock cylinder 3 until the nose member 35 of this firingpin 9 is held by the catch nose 29 of the trigger sear l1, urged by thespring member 16 upwards until it makes contact with the firing pin-nosemember 35. The breechblock cylinder 3 continues to move for a certaindistance until it contacts the barrel 1; this pre-cocking path isconveniently designated the firing path.

The pivot bolt 4 mounted in the breechblock cylinder 3, likewisedisplaces forwards, slides over the cam piece 32 of the disconnectOrpiece 27 and releases the latter. Now spring member 28 presses thedisconnector 27 forwards until its nose member 33 bears against the nosemember 34 of the trigger rod or arm 26. In this position the triggermechanism is set that is to say, is in a preparatory state for firing orpropelling a cartridge.

When firing a cartridge while employing a pressure point squeeze ortriggering, the trigger tongue or trigger member 17 is pressedrearwardly. Consequently, the spring member 25 between the screw 24 andthe countersupport 31 is tensioned. During this movement, convenientlytermed the initial trigger squeeze, there is overcome the path throughwhich the pressure point screw 20 must move until its contacts thecountersupport 31, this displacement path being adjustable by means ofthe screw member 18. The

somewhat stronger spring 22, arranged at the pressure point screw 20between the trigger arm 26 and the pressure point adjustment nut 23,therefore forms upon contact with the countersupport 31 a resistance(pressure point) which can be felt. Depending upon the prebias of thisspring 22 by means of the nut 23, it is possible to regulate thepressure point so as to be less pronounced or stronger, as desired. Ifpressure is applied to the trigger arm 26 via this impact arrangement,in that the spring 22 is still further compressed, then, the triggerarm-nose member 34 moves further downwards and releases the disconnector27. The disconnector 27, urged forwardly by the spring 28, impactsagainst the rearmost region 1 la of the trigger sear 11 through theaction of its cam portion or lifting nose 32a, thereby causing thetrigger sear 11 to rotate in counterclockwise direction about the pointof rotation 30 and overcoming the force of the spring 16. As a result,the catch nose 29 is pressed downwardly and therefore releases thefiring pin member 9. Firing pin member 9 is displaced forwardly owing tothe action of the tensioned firing pin spring 10 and thereby fires thecartridge.

When firing the cartridge with a double-hair trigger the interengagementof the nose members 34 and 33 of the trigger arm 26 and the disconnector27 are adjusted by means of the screw member 18 to be so fine that thesmallest displacement path of the trigger 17 in the direction of triggermovement releases the disconnector 27. The pressure point screw 20 mustbe turned back; its impact portion 36 should not contact thecountersupport 31. Now, only the spring of the double-hair trigger screw24 acts upon the trigger arm 26 and therefore upon the trigger 17. Sinceit is also possible to adjust the spring 25 by means of the double-hairtrigger screw 24 there is possible an optional adjustment of the weightof the double-hair trigger.

The trigger mechanism consisting of three main components (trigger seat11, disconnector 27, trigger arm 26) can be adjusted both fordouble-hair triggers as well as also for pressure-point triggers. Thefunction is extremely simple. The trigger mechanism possesses a shortrelease time and a light-action of the impact of the disconnector 27upon the trigger sear 11 which, in turn, releases the firing pin 9, anddoes not affect the firing precision.

The herein described and illustrated angle-lever breechblock mechanismtogether with the trigger mechanism is extremely simple both inoperation and manufacture and in the area of high precision pistolsprovides a completely new and improved construction. By means of thecocking or tensioning lever it is possible to both actuate the strikeror impact mechanism and the function of the breechblock mechanism aswell as also to preset the trigger system. The trigger system isconstructed in an extremely simple manner and can be adjusted, asmentioned above, both for pressurepoint triggers as well as fordouble-hair triggers. The barrel dimensions and the bore relationshipsand also the sighting can be accommodated to the exceptional firingaccuracy.

While there is shown and described present preferred embodiments of theinvention, it is to be distinctly understood that the invention is notlimited thereto but may be otherwise variously embodied and practicedwithin the scope of the following claims. Accordingly,

What is claimed is:

l. A firearm comprising an angle-lever breechblock mechanism, and anactuating lever laterally mounted for actuating said angle-leverbreechblock mechanism, said angle-lever breechblock mechanism comprisinga breechblock cylinder and a breech lock, a connecting lever, a firstpivot bolt for connecting one end of said I connecting lever with saidbreech block cylinder, and a second pivot bolt for connecting the otherend of said connecting lever with said breech lock; a trigger mechanismincorporating a trigger member operatively connected with a trigger armand a displaceably mounted disconnector member cooperating with saidtrigger arm, said first pivot bolt being mounted at said breechblockcylinder and cooperating with said disconnector member such that uponopening said angle-lever breechblock mechanism and first pivot bolt actsupon said disconnector member to initially cause release of said triggerarm, whereupon said trigger arm and disconnector member interengage withone another to preset said trigger member.

2. A firearm as defined in claim 1, wherein said actuating lever isrigidly connected with said breech lock.

3. A target piston comprising a trigger mechanism and a breechblockmechanism, said breechblock mechanism incorporating a breechblockcylinder and a breech lock, lever means for operatively interconnectingsaid breechblock cylinder with said breech lock, said breech lock beingpivotably disposed adjacent said breechblock cylinder, said lever meanshaving end portions respectively pivotably secured to said breechblockcylinder and said breech lock, and means carried by said lever means forsetting said trigger mechanism.

4. The target pistol as defined in claim 3 wherein said breechblockmechanism in its cocked condition is supported and locked linearly bymeans of the interaction of said breech lock with said breechblockcylinder.

5. The target pistol as defined in claim 4, further including anoutwardly pivotably mounted angle lever for actuating the breechblockmechanism.

6. A target pistol comprising a breechblock mechanism incorporating abreechblock cylinder and a breech lock, lever means for operativelyinterconnecting said breechblock cylinder with said breech lock, saidbreech lock being pivotably disposed adjacent said breechblock cylinder,said lever means having end portions respectively pivotably secured tosaid breechblock cylinder and said breech lock, a trigger mechanismincorporating a trigger member operatively connected with a trigger armand a displaceably mounted disconnecting member cooperating with saidtrigger arm, a pivot bolt being mounted at said breechlock cylinder andcooperating with said disconnecting member such that upon openingbreechlock mechanism said pivot bolt acts upon said disconnecting memberto initially cause release of said trigger arm, whereupon said triggerarm and disconnecting member interengage with one another to set saidtrigger member.

7. A target pistol comprising a breechblock mechanism incorporating abreechblock cylinder and a breech lock, lever means for operativelyinterconnectshape conforming to the rearward portion of said breechblockcylinder for longitudinal abutment therewith.

8. The target pistol as defined in claim 7 wherein said breech lockpivot axis is in intersecting alignment with the longitudinal axis ofsaid breechblock cylinder.

1. A firearm comprising an angle-lever breechblock mechanism, and anactuating lever laterally mounted for actuating said angle-leverbreechblock mechanism, said angle-lever breechblock mechanism comprisinga breechblock cylinder and a breech lock, a connecting lever, a firstpivot bolt for connecting one end of said connecting lever with saidbreech block cylinder, and a second pivot bolt for connecting the otherend of said connecting lever with said breech lock; a trigger mechanismincorporating a trigger member operatively connected with a trigger armand a displaceably mounted disconnector member cooperating with saidtrigger arm, said first pivot bolt being mounted at said breechblockcylinder and cooperating with said disconnector member such that uponopening said angle-lever breechblock mechanism and first pivot bolt actsupon said disconnector member to initially cause release of said triggerarm, whereupon said trigger arm and disconnector member interengage withone another to preset said trigger member.
 2. A firearm as defined inclaim 1, wherein said actuating lever is rigidly connected with saidbreech lock.
 3. A target piston comprising a trigger mechanism and abreechblock mechanism, said breechblock mechanism incorporating abreechblock cylinder and a breech lock, lever means for operativelyinterconnecting said breechblock cylinder with said breech lock, saidbreech lock being pivotably disposed adjacent said breechblock cylinder,said lever means having end portions respectively pivotably secured tosaid breechblock cylinder and said breech lock, and means carried bysaid lever means for setting said trigger mechanism.
 4. The targetpistol as defined in claim 3 wherein said breechblock mechanism in itscocked condition is supported and locked linearly by means of theinteraction of said breech lock with said breechblock cylinder.
 5. Thetarget pistol as defined in claim 4, further including an outwardlypivotably mounted angle lever for actuating the breechblock mechanism.6. A target pistol comprising a breechblock mechanism incorporating abreechblock cylinder and a breech lock, lever means for operativelyinterconnecting said breechblock cylinder with said breech lock, saidbreech lock being pivotably disposed adjacent said breechblock cylinder,said lever means having end portions respectively pivotably secured tosaid breechblock cylinder and said breech lock, a trigger mechanismincorporating a trigger member operatively connected with a trigger armand a displaceably mounted disconnecting member cooperating with saidtrigger arm, a pivot bolt being mounted at said breechlock cylinder andcooperating with said disconnecting member such that upon openingbreechlock mechanism said pivot bolt acts upon said disconnecting memberto initially cause release of said trigger arm, whereupon said triggerarm and disconnecting member interengage with one another to set saidtrigger member.
 7. A target pistol comprising a breechblock mechanismincorporating a breechblock cylinder and a breech lock, lever means foroperatively interconnecting said breechblock cylinder with said breechlock, said breech lock being pivotably disposed adjacent saidbreechblock cylinder, said lever means having end portions respectivelypivotably secured to said breechblock cylinder and said breech lock,said breech lock includes a rearward portion pivotably secured to saidpistol, an intermediate portion pivotably joined to said connectinglever end, and a forward portion of a shape conforming to the rearwardportion of said breechblock cylinder for longitudinal abutmenttherewith.
 8. The target pistol as defined in claim 7 wherein saidbreech lock pivot axis is in intersecting alignment with thelongitudinal axis of said breechblock cylinder.